:root {
  --bg: #0f1117;
  --bg-2: #161a25;
  --surface: #1a1f2e;
  --surface-2: #222840;
  --accent: #00d4aa;
  --accent-2: #00b890;
  --accent-glow: rgba(0, 212, 170, 0.12);
  --text: #f0f2f7;
  --text-2: #9aa0b2;
  --text-3: #5a6178;
  --border: rgba(255,255,255,0.07);
  --border-accent: rgba(0,212,170,0.25);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAVBAR */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}
.navbar-logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}
.navbar-tagline {
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding: 80px 48px 96px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: 20px;
  padding: 5px 12px;
  margin-bottom: 20px;
}
.hero-headline {
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--text);
  margin-bottom: 24px;
}
.hero-lede {
  font-family: 'Source Serif 4', serif;
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-2);
  max-width: 480px;
  margin-bottom: 40px;
}
.hero-proof {
  display: flex;
  gap: 40px;
}
.proof-item { display: flex; flex-direction: column; gap: 4px; }
.proof-number {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -1px;
  line-height: 1;
}
.proof-label { font-size: 12px; color: var(--text-3); max-width: 130px; line-height: 1.3; }

/* PHONE MOCKUP */
.hero-right { display: flex; justify-content: center; }
.phone-mockup {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  width: 300px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
}
.phone-header {
  background: var(--bg-2);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}
.phone-dots { display: flex; gap: 5px; }
.phone-dots span {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--surface-2);
}
.phone-title { font-size: 13px; font-weight: 700; flex: 1; text-align: center; color: var(--text); }
.phone-status {
  font-size: 10px; font-weight: 600; letter-spacing: 0.05em;
  padding: 3px 8px; border-radius: 10px;
}
.phone-status.online {
  background: rgba(0,212,170,0.15);
  color: var(--accent);
  border: 1px solid rgba(0,212,170,0.2);
}
.phone-body {
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 380px;
  overflow: hidden;
}
.msg-group { display: flex; flex-direction: column; gap: 3px; }
.msg-group.incoming { align-items: flex-start; }
.msg-group.outgoing { align-items: flex-end; }
.bubble {
  max-width: 220px;
  padding: 9px 13px;
  border-radius: 16px;
  font-size: 12.5px;
  line-height: 1.5;
  font-family: 'DM Sans', sans-serif;
}
.incoming-bubble {
  background: var(--surface-2);
  color: var(--text);
  border-bottom-left-radius: 4px;
}
.outgoing-bubble {
  background: var(--accent);
  color: #0a0f0d;
  font-weight: 600;
  border-bottom-right-radius: 4px;
}
.accent-bubble { background: var(--accent); }
.bubble-time {
  font-size: 10px;
  color: var(--text-3);
  margin-top: 2px;
}
.msg-group.outgoing .bubble-time { text-align: right; }

/* STATS */
.stats-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 56px 48px;
}
.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}
.stat-block { text-align: center; flex: 1; }
.stat-value {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-family: 'Source Serif 4', serif;
  font-size: 13px;
  color: var(--text-3);
  max-width: 200px;
  margin: 0 auto;
  line-height: 1.4;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
  margin: 0 48px;
  flex-shrink: 0;
}

/* FEATURES */
.features-section {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-headline {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 12px;
}
.section-sub {
  font-family: 'Source Serif 4', serif;
  font-size: 17px;
  color: var(--text-2);
  margin-bottom: 56px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.features-grid .feature-card:nth-child(4),
.features-grid .feature-card:nth-child(5) {
  grid-column: span 1;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: var(--border-accent); }
.feature-icon-wrap {
  width: 48px; height: 48px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent);
}
.feature-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.feature-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

/* DIFFERENTIATOR */
.diff-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 96px 48px;
}
.diff-inner { max-width: 1200px; margin: 0 auto; }
.diff-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.diff-headline {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 56px;
}
.diff-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: start;
}
.comp-column { }
.comp-header {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.answerflow-header { color: var(--accent); }
.comp-item {
  font-size: 14px;
  color: var(--text-3);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.4;
}
.comp-item.highlight {
  color: var(--text);
  font-weight: 500;
}
.comp-divider {
  width: 1px;
  background: var(--border);
  margin: 0 48px;
  align-self: stretch;
}

/* CLOSING */
.closing-section {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.closing-headline {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 24px;
  max-width: 700px;
}
.closing-body {
  font-family: 'Source Serif 4', serif;
  font-size: 19px;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 640px;
}

/* FOOTER */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 48px;
  text-align: center;
}
.footer-brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}
.footer-tagline {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 16px;
}
.footer-copy {
  font-size: 12px;
  color: var(--text-3);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 56px 24px 64px;
    gap: 48px;
  }
  .hero-right { order: -1; }
  .phone-mockup { width: 260px; }
  .hero-proof { gap: 28px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .stats-inner { flex-direction: column; gap: 40px; }
  .stat-divider { display: none; }
  .diff-comparison { grid-template-columns: 1fr; gap: 40px; }
  .comp-divider { display: none; }
  .navbar { padding: 16px 24px; }
}
@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .phone-mockup { width: 240px; }
  .hero-proof { flex-direction: column; gap: 16px; }
  .closing-body { font-size: 16px; }
  .features-section, .diff-section, .closing-section { padding: 64px 24px; }
  .stats-section { padding: 48px 24px; }
  .site-footer { padding: 32px 24px; }
}